Rebol 编程/echo
外观
< Rebol 编程
ECHO target
将控制台输出复制到文件。
ECHO 是一个函数值。
- 目标 -- (类型:文件 无 逻辑)
- 捕获
echo: func [ "Copies console output to a file." [catch] target [file! none! logic!] ][ if port? system/ports/echo [ close system/ports/echo system/ports/echo: none ] if target = true [target: %rebol-echo.txt] if file? target [ system/ports/echo: throw-on-error [open/write/new/direct target] ] ]